20996129

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1061}}^1$

素因数の和:1336

約数の個数: 16

約数和(自身を含む): 26303616

約数和(自身を除く): 5307487

約数列:

[1, 7, 11, 77, 257, 1061, 1799, 2827, 7427, 11671, 19789, 81697, 272677, 1908739, 2999447, 20996129]

約数ペア:

[(1, 20996129), (7, 2999447), (11, 1908739), (77, 272677), (257, 81697), (1061, 19789), (1799, 11671), (2827, 7427)]